//百度 正则表达式
let str="ss13697074554ddddd";
console.log(/\d{11}/.exec(str));
let url='http://api.map.baidu.com/api?type=webgl&v=1.0&ak=PIHg7hLkryjeluelF75Grjjtr1RfgXYh';
//url 匹配规则
let reg = /[?&]([^?&=]+)=([^?&=]*)/g;
console.log(url.match(reg))